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What is hot molten rock called?

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in Energy Engineering by (91.0k points)
What is hot molten rock called?

(a) Lava

(b) Magma

(c) Igneous rocks

(d) Volcano

I had been asked this question in final exam.

This intriguing question originated from Geothermal Energy topic in chapter Ocean Energy & Geothermal Energy of Energy Engineering

1 Answer

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Right option is (b) Magma

For explanation I would say: Magma is a mixture of molten or semi-molten rock, volatiles and solid that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals, dissolved gas and sometimes gas bubbles.

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